| http://www.w3.org/ns/prov#value | - ions: 1) Do patients with chronic, unexplained, disabling fatigue, including the subsets with CFS and fibromyalgia, perceive their premorbid activity levels as higher than the current activity levels perceived by healthy matched controls? 2) Do patients with chronic, unexplained, disabling fatigue, including the subsets with CFS and fibromyalgia, perceive their current activity levels as lower tha
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